$79+ Cheap flights from Ontario (ONT) to Wisconsin
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MKE
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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Cheapest flights from Ontario to WisconsinExplore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
Explore the most affordable flight options available from Ontario to Wisconsin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
This Frontier deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Sun 4/1911:47 am
MSP
- ONT
1 stop14h 09m
Frontier
Deal found 3/22![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Sun 4/2611:47 am
MSP
- ONT
1 stop14h 09m
Frontier
Deal found 3/22![Frontier logo]()
$162
This Booking.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Tue 5/51:10 pm
MSP
- ONT
1 stop8h 01m
Frontier
Deal found 3/20![Frontier logo]()
$167
This CheapOair deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Sun 4/1911:47 am
MSP
- ONT
1 stop14h 09m
Frontier
Deal found 3/20![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Wed 5/279:39 pm
MSP
- ONT
1 stop28h 10m
Frontier
Deal found 3/19![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:00 am
ONT
- MSP
1 stop12h 44m
Frontier
Wed 5/279:39 pm
MSP
- ONT
1 stop28h 10m
Frontier
Deal found 3/19![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:00 am
ONT
- MSP
1 stop12h 44m
Frontier
Tue 5/1910:14 am
MSP
- ONT
1 stop25h 51m
Frontier
Deal found 3/19![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Sun 4/2611:47 am
MSP
- ONT
1 stop14h 09m
Frontier
Deal found 3/20![Frontier logo]()
$185
This Booking.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Sun 5/36:45 am
MSP
- ONT
1 stop26h 46m
Frontier
Deal found 3/22![Frontier logo]()
$187
This Flightnetwork deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Tue 4/288:15 am
MSP
- ONT
1 stop17h 40m
Frontier
Deal found 3/21![Frontier logo]()
$191
This Booking.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Wed 4/2911:15 am
MSP
- ONT
1 stop14h 40m
Frontier
Deal found 3/21![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Mon 5/41:30 pm
MSP
- ONT
1 stop22h 35m
Frontier
Deal found 3/18![Frontier logo]()
$194
Best flights from Ontario to WisconsinDiscover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
Discover carefully curated flight deals from Ontario to Wisconsin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:49 pm
ONT
- MKE
1 stop9h 08m
Delta
Tue 4/285:30 am
MKE
- ONT
1 stop8h 06m
Delta
Deal found 3/18![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:00 am
ONT
- MSP
1 stop5h 40m
United Airlines
Tue 6/21:36 pm
MSP
- ONT
2 stops11h 01m
United Airlines
Deal found 3/20![United Airlines logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
ONT
- MSP
1 stop9h 58m
Alaska Airlines
Thu 6/114:57 pm
MSP
- ONT
1 stop8h 14m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$392
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/93:35 pm
ONT
- MKE
1 stop5h 50m
Southwest
Sun 5/105:35 am
MKE
- ONT
1 stop6h 55m
Southwest
Deal found 3/18![Southwest logo]()
$405
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/119:24 am
ONT
- LSE
2 stops12h 30m
American Airlines
Thu 5/1410:05 am
LSE
- ONT
2 stops10h 25m
American Airlines
Deal found 3/20![American Airlines logo]()
$695
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:18 pm
ONT
- MSN
2 stops8h 46m
United Airlines
Wed 9/233:00 pm
MSN
- ONT
1 stop7h 52m
United Airlines
Deal found 3/20![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 pm
ONT
- MSN
2 stops10h 13m
Delta
Tue 5/511:19 am
MSN
- ONT
2 stops14h 25m
Delta
Deal found 3/19![Delta logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
ONT
- MSP
1 stop9h 58m
Alaska Airlines
Sun 6/146:00 am
MSP
- ONT
1 stop9h 13m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:30 am
ONT
- ORD
Nonstop4h 15m
United Airlines
Wed 6/38:13 pm
ORD
- ONT
Nonstop4h 33m
United Airlines
Deal found 3/18![United Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:00 am
ONT
- MSP
1 stop7h 16m
Alaska Airlines
Sun 4/267:00 am
MSP
- ONT
1 stop9h 32m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/152:40 pm
ONT
- MKE
1 stop5h 45m
Southwest
Tue 6/236:20 pm
MKE
- ONT
1 stop5h 55m
Southwest
Deal found 3/18![Southwest logo]()
$477
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:00 am
ONT
- ORD
Nonstop4h 03m
United Airlines
Wed 5/132:10 pm
ORD
- ONT
1 stop9h 48m
United Airlines
Deal found 3/18![United Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:00 pm
ONT
- MKE
1 stop9h 08m
Delta
Thu 5/146:45 am
MKE
- ONT
1 stop7h 34m
Delta
Deal found 3/21![Delta logo]()
$477
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1712:30 pm
ONT
- MSP
2 stops7h 40m
Southwest
Tue 5/195:20 am
MSP
- ONT
2 stops8h 35m
Southwest
Deal found 3/19![Southwest logo]()
$485
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:10 am
ONT
- MKE
1 stop7h 18m
United Airlines
Tue 4/145:37 pm
MKE
- ONT
1 stop6h 54m
United Airlines
Deal found 3/18![United Airlines logo]()
$415
This Alaska Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3012:02 pm
ONT
- MSP
1 stop9h 57m
Alaska Airlines
Wed 8/56:00 am
MSP
- ONT
1 stop9h 13m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:49 pm
ONT
- GRB
1 stop8h 12m
Delta
Sat 5/911:53 am
GRB
- ONT
2 stops11h 55m
Delta
Deal found 3/22![Delta logo]()
$493
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/45:45 am
ONT
- MSP
1 stop9h 27m
United Airlines
Tue 6/95:09 pm
MSP
- ONT
1 stop7h 37m
United Airlines
Deal found 3/18![United Airlines logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/132:09 pm
ONT
- MSP
1 stop7h 50m
Alaska Airlines
Sat 6/206:17 pm
MSP
- ONT
1 stop7h 37m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$467
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3012:05 pm
ONT
- MSP
2 stops8h 10m
Southwest
Wed 7/12:15 pm
MSP
- ONT
2 stops8h 05m
Southwest
Deal found 3/23![Southwest logo]()
$517
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:34 pm
ONT
- ORD
1 stop8h 56m
United Airlines
Sat 4/188:05 pm
ORD
- ONT
Nonstop4h 26m
United Airlines
Deal found 3/19![United Airlines logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:09 pm
ONT
- MSP
1 stop7h 50m
Alaska Airlines
Thu 7/166:17 pm
MSP
- ONT
1 stop7h 37m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$467
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:25 pm
ONT
- ATW
2 stops11h 00m
Delta
Fri 4/175:30 am
ATW
- ONT
1 stop8h 06m
Delta
Deal found 3/20![Delta logo]()
$542
This Southwest deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:15 am
ONT
- ORD
2 stops8h 15m
Southwest
Tue 4/216:15 am
ORD
- ONT
2 stops10h 50m
Southwest
Deal found 3/21![Southwest logo]()
$572
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:00 am
ONT
- MKE
1 stop7h 47m
United Airlines
Mon 4/205:37 pm
MKE
- ONT
1 stop6h 54m
United Airlines
Deal found 3/20![United Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:00 pm
ONT
- GRB
1 stop7h 58m
Delta
Sun 8/235:30 am
GRB
- ONT
1 stop7h 34m
Delta
Deal found 3/18![Delta logo]()
$564
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/281:34 pm
ONT
- MKE
1 stop5h 47m
United Airlines
Sat 5/21:46 pm
MKE
- ONT
1 stop6h 15m
United Airlines
Deal found 3/22![United Airlines logo]()
$457
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:15 pm
ONT
- ORD
2 stops12h 30m
Delta
Sat 4/187:15 am
ORD
- ONT
2 stops11h 10m
Delta
Deal found 3/21![Delta logo]()
$572
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:00 am
ONT
- DLH
1 stop9h 07m
United Airlines
Wed 4/223:08 pm
DLH
- ONT
1 stop9h 23m
United Airlines
Deal found 3/18![United Airlines logo]()
$458
This Alaska Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:32 pm
ONT
- ORD
1 stop9h 30m
Alaska Airlines
Mon 7/68:05 pm
ORD
- ONT
1 stop19h 08m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$629
Last-minute flights from Ontario to WisconsinDiscover last-minute flight deals from Ontario to Wisconsin. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Wisconsin. Data last updated March 23, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Sun 4/1911:47 am
MSP
- ONT
1 stop14h 09m
Frontier
Deal found 3/22![Frontier logo]()
$160
This Frontier deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Sun 4/2611:47 am
MSP
- ONT
1 stop14h 09m
Frontier
Deal found 3/22![Frontier logo]()
$162
This CheapOair deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Sun 4/1911:47 am
MSP
- ONT
1 stop14h 09m
Frontier
Deal found 3/20![Frontier logo]()
$171
This Booking.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Sat 5/910:14 am
MSP
- ONT
1 stop15h 35m
Frontier
Deal found 3/20![Frontier logo]()
$212
This CheapOair deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Tue 4/288:15 am
MSP
- ONT
1 stop17h 40m
Frontier
Deal found 3/22![Frontier logo]()
$216
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Sun 4/2611:47 am
MSP
- ONT
1 stop14h 09m
Frontier
Deal found 3/20![Frontier logo]()
$185
This Flightnetwork deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Tue 4/288:15 am
MSP
- ONT
1 stop17h 40m
Frontier
Deal found 3/21![Frontier logo]()
$191
This Booking.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Wed 4/2911:15 am
MSP
- ONT
1 stop14h 40m
Frontier
Deal found 3/21![Frontier logo]()
$192
This CheapOair deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:59 am
ONT
- MKE
1 stop14h 35m
Frontier
Mon 4/275:05 pm
MKE
- ONT
1 stop8h 50m
Frontier
Deal found 3/22![Frontier logo]()
$196
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:59 am
ONT
- MSP
1 stop8h 03m
Frontier
Mon 4/271:30 pm
MSP
- ONT
1 stop12h 25m
Frontier
Deal found 3/20![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:33 pm
ONT
- MSP
1 stop28h 25m
Frontier
Sat 5/910:14 am
MSP
- ONT
1 stop15h 35m
Frontier
Deal found 3/20![Frontier logo]()
$217
This CheapOair deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:43 pm
ONT
- MSP
1 stop15h 19m
Frontier
Sun 5/36:45 am
MSP
- ONT
1 stop26h 46m
Frontier
Deal found 3/20![Frontier logo]()
$196
One-way flights from Ontario to WisconsinSearch for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
Search for one-way flight options from Ontario to Wisconsin. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This Super.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/11:59 pm
ONT
- ORD
1 stop8h 53m
Frontier
Deal found 3/20![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/610:50 am
ONT
- MSP
1 stop7h 54m
Frontier
Deal found 3/20![Frontier logo]()
$80
This Frontier deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:50 am
ONT
- ORD
1 stop7h 47m
Frontier
Deal found 3/22![Frontier logo]()
$80
This Booking.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:59 am
ONT
- ORD
1 stop6h 51m
Frontier
Deal found 3/22![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Deal found 3/20![Frontier logo]()
$85
This Super.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:06 pm
ONT
- ORD
1 stop24h 55m
Frontier
Deal found 3/22![Frontier logo]()
$85
This Expedia deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:00 am
ONT
- MSP
1 stop25h 19m
Frontier
Deal found 3/22![Frontier logo]()
$86
This Frontier deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:00 am
ONT
- ORD
1 stop12h 37m
Frontier
Deal found 3/22![Frontier logo]()
$86
This CheapOair deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:59 am
ONT
- MSP
1 stop20h 59m
Frontier
Deal found 3/20![Frontier logo]()
$92
This CheapOair deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:59 am
ONT
- MKE
1 stop14h 45m
Frontier
Deal found 3/20![Frontier logo]()
$92
This CheapOair deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/272:05 pm
ONT
- ORD
1 stop14h 03m
Frontier
Deal found 3/20![Frontier logo]()
$92
This Trip.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:50 am
ONT
- MSP
1 stop7h 54m
Frontier
Deal found 3/18![Frontier logo]()
$93
Find flight deals from Ontario to Wisconsin
Keep the following information in mind while searching for Ontario to Wisconsin flight deals. Data was last updated March 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $160 (Frontier) |
One-way from | $79 (Super.com) |
Popular in | February |
Cheapest in | August |
Average price | $452 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Wisconsin that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 23, 2026.
Use the filters below to find and compare flights from Ontario to Wisconsin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Wed 4/22
12:49 pm-11:57 pm
1 stop9h 08m
Milwaukee-Mitchell
Tue 4/28
5:30 am-11:36 am
1 stop8h 06m
$317
OntarioMinneapolis
ONT - MSP
ONTMSP
Ontario
Thu 5/28
5:00 am-12:40 pm
1 stop5h 40m
Minneapolis St Paul
Tue 6/2
1:36 pm-10:37 pm
2 stops11h 01m
$356
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Tue 9/1
1:18 pm-12:04 am
2 stops8h 46m
Madison Truax Field
Wed 9/23
3:00 pm-8:52 pm
1 stop7h 52m
$374
OntarioMadison
ONT - MSN
ONTMSN
Ontario
Fri 5/1
10:15 pm-10:28 am
2 stops10h 13m
Madison Truax Field
Tue 5/5
11:19 am-11:44 pm
2 stops14h 25m
$379
OntarioMinneapolis
ONT - MSP
ONTMSP
Ontario
Tue 6/9
6:00 am-5:58 pm
1 stop9h 58m
Minneapolis St Paul
Thu 6/11
4:57 pm-11:11 pm
1 stop8h 14m
$392
OntarioMinneapolis
ONT - MSP
ONTMSP
Ontario
Tue 6/9
6:00 am-5:58 pm
1 stop9h 58m
Minneapolis St Paul
Sun 6/14
6:00 am-1:13 pm
1 stop9h 13m
$392
Quickest round-trip
OntarioChicago
ONT - ORD
ONTORD
Ontario
Tue 5/26
6:30 am-12:45 pm
Nonstop4h 15m
Chicago O'Hare Intl
Wed 6/3
8:13 pm-10:46 pm
Nonstop4h 33m
$397
OntarioMilwaukee
ONT - MKE
ONTMKE
Ontario
Sat 5/9
3:35 pm-11:25 pm
1 stop5h 50m
Milwaukee-Mitchell
Sun 5/10
5:35 am-10:30 am
1 stop6h 55m
$405
OntarioChicago
ONT - ORD
ONTORD
Ontario
Thu 5/7
7:00 am-1:03 pm
Nonstop4h 03m
Chicago O'Hare Intl
Wed 5/13
2:10 pm-9:58 pm
1 stop9h 48m
$407
OntarioMinneapolis
ONT - MSP
ONTMSP
Ontario
Sat 4/18
7:00 am-4:16 pm
1 stop7h 16m
Minneapolis St Paul
Sun 4/26
7:00 am-2:32 pm
1 stop9h 32m
$412
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Wisconsin
Have a flexible travel schedule? Discover the best time to fly to Wisconsin from Ontario with our price prediction graph.
ONT-MSP
ONT-MKE
ONT-ORD
ONT-LSE
ONT-MSN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Wisconsin
ONT-USWI
ONT-MSP
ONT-MKE
ONT-ORD
ONT-LSE
What is the cheapest month to book a flight from Ontario to Wisconsin?
Currently, May is the cheapest month in which you can book a flight from Ontario to Wisconsin (average of $94). Flying from Ontario to Wisconsin in January is currently the most expensive (average of $265). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Wisconsin
Get insights into the airlines that provide service to Wisconsin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Wisconsin. Reviews last updated March 23, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Ontario to Wisconsin. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Wisconsin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Wisconsin
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Wisconsin by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Wisconsin by cabin class
Find flights from Ontario to Wisconsin, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Wisconsin flights
Browse other Ontario and Wisconsin flight options. Last updated on March 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Wisconsin flights
Consider these flights traveling from Ontario to Wisconsin.
Top 4 airlines flying from Ontario to Wisconsin
Discover the top 4 airlines that operate flights from Ontario to Wisconsin. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$253 | Average$442 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$276 | Average$596 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$288 | Average$506 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$326 | Average$416 | FlexibilityNo cancel fee | On-time63% |